/*
 * Copyright (c) 2019, Oracle and/or its affiliates.
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials provided
 * with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
 * endorse or promote products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#include "stdio.h"

#pragma pack(push)
#pragma pack(1)
struct Struct {
  signed f0 : 14;
  unsigned f1 : 13;
  volatile signed f2 : 28;
  unsigned f3 : 23;
  const signed f4 : 12;
  volatile unsigned f5 : 21;
  volatile signed : 0;
};
#pragma pack(pop)

static struct Struct value[2] = { { -87, 27, 202, 441 }, { -87, 27, 202, 441 } };

void dump_ptr(unsigned char *ptr, int len) {
  for (int i = 0; i < len; i++, ptr++) {
    if (i % 16 == 0) {
      printf("\n%04x:", i);
    } else if (i % 8 == 0) {
      printf("  ");
    }
    printf(" %02x", *ptr);
  }
  printf("\n");
}

int main(int argc, char *argv[]) {
  dump_ptr(value, 2 * sizeof(*value));
  dump_ptr(&value[argc], sizeof(struct Struct));

  printf("%d\n", value[argc].f0);
  return 0;
}
